Film-winding apparatus.



H. J. HAMANN.

FILM WINDING APPARATUS.

APPLICATION FILED AUG. 3o, 1912.

@I j @tin/0L @wwmw 2. i AWinding feel .comprising e dish havan' annular 'ecess "Lheiein and weifiy compressihie ouweiiljf @Koll-'Kng bioli'en spring ring insee in Said recess and dcrictionalljf engaging," the ouer 'weii of said recess; and finger pieces on the interior said z'ing; adaped to facilitate iIiWm-d ompi'ession thereof, substantially es deeiibed.

A Winding reel comprising a disk haven annuler recess therein and am i1- Wediy oompessible outwardjy expanding broken. spring ring inserted in said ecess and rictionailf/ engaging the oue? Wall of said recess; finger pieces onfthe interior of Said fing adapted to aoiiitee inward compression thereof; and a proiection on the periphery of said ring adapted to engage a perforation in the end of a strip, substandaily es esoibed.

in aestmony whereof have signed my name to this specification in ythe presence of two suhsoihing Witnesses.

HENRY J. 'HAMANN 1Witlrieseee A. A. ULSON, JOSHUA R. HQ Powe. 

